Academic Journal
The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change.
| Τίτλος: | The Great Oxygenation Event as a consequence of ecological dynamics modulated by planetary change. |
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| Συγγραφείς: | Olejarz J; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, USA. jasonolejarz@gmail.com., Iwasa Y; Department of Bioscience, School of Science and Technology, Kwansei Gakuin University, Sanda-shi, Hyogo, Japan., Knoll AH; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, USA., Nowak MA; Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA, USA.; Department of Mathematics, Harvard University, Cambridge, MA, USA. |
| Πηγή: | Nature communications [Nat Commun] 2021 Jun 28; Vol. 12 (1), pp. 3985. Date of Electronic Publication: 2021 Jun 28. |
| Τύπος έκδοσης: | Journal Article; Research Support, Non-U.S. Gov't |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101528555 Publication Model: Electronic Cited Medium: Internet ISSN: 2041-1723 (Electronic) Linking ISSN: 20411723 NLM ISO Abbreviation: Nat Commun Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: [London] : Nature Pub. Group |
| Ιατρικοί όροι (MeSH): | Earth, Planet* , Evolution, Planetary*, Cyanobacteria/*metabolism, Atmosphere ; Oxidation-Reduction |
| Περίληψη: | The Great Oxygenation Event (GOE), ca. 2.4 billion years ago, transformed life and environments on Earth. Its causes, however, are debated. We mathematically analyze the GOE in terms of ecological dynamics coupled with a changing Earth. Anoxygenic photosynthetic bacteria initially dominate over cyanobacteria, but their success depends on the availability of suitable electron donors that are vulnerable to oxidation. The GOE is triggered when the difference between the influxes of relevant reductants and phosphate falls below a critical value that is an increasing function of the reproductive rate of cyanobacteria. The transition can be either gradual and reversible or sudden and irreversible, depending on sources and sinks of oxygen. Increasing sources and decreasing sinks of oxygen can also trigger the GOE, but this possibility depends strongly on migration of cyanobacteria from privileged sites. Our model links ecological dynamics to planetary change, with geophysical evolution determining the relevant time scales. |
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| Entry Date(s): | Date Created: 20210629 Date Completed: 20210722 Latest Revision: 20210722 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC8238953 |
| DOI: | 10.1038/s41467-021-23286-7 |
| PMID: | 34183660 |
| Βάση Δεδομένων: | MEDLINE |
| ISSN: | 2041-1723 |
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| DOI: | 10.1038/s41467-021-23286-7 |